Test migration to jest by hand

Apparently using regular expressions is way easier.

test/getStyle/getStyle.js

@@ -0,0 +1,2 @@
+const getStyle = (el, ruleName) => getComputedStyle(el)[ruleName];
+module.exports = getStyle;

test/getStyle/getStyle.test.js

@@ -0,0 +1,10 @@
+const expect = require('expect');
+const getStyle = require('./getStyle.js');
+
+
+  test('getStyle is a Function', () => {
+  expect(getStyle).toBeInstanceOf(Function);
+});
+  t.pass('Tested by @chalarangelo on 16/02/2018');
+  
+